CN113280791A - Oblique photography measuring device for realizing topographic mapping - Google Patents
Oblique photography measuring device for realizing topographic mapping Download PDFInfo
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- CN113280791A CN113280791A CN202110614958.XA CN202110614958A CN113280791A CN 113280791 A CN113280791 A CN 113280791A CN 202110614958 A CN202110614958 A CN 202110614958A CN 113280791 A CN113280791 A CN 113280791A
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- cavity
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- aerial vehicle
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- 238000013507 mapping Methods 0.000 title claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 238000005096 rolling process Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 8
- 238000007664 blowing Methods 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D47/00—Equipment not otherwise provided for
- B64D47/08—Arrangements of cameras
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Studio Devices (AREA)
Abstract
The invention discloses a slant photography measuring device for realizing topographic mapping, which comprises an unmanned aerial vehicle main body, a camera shooting main body, a landing protection assembly and a windproof assembly, wherein the unmanned aerial vehicle main body comprises a rack, four propellers arranged on the rack, and four support legs fixed at the bottom of the rack; wherein, the bottom end inside the support leg is provided with a balance oil liquid cavity; the fall to ground protection subassembly includes: the shell is fixed at the center of the bottom of the rack. When the unmanned aerial vehicle is subjected to air flow in the air, the blowing cross fan plate leads the rolling ball to roll, so that the cross fan plate inclines towards the air flow direction, the bottom square push block inclines towards one side opposite to the air flow direction, and the square push block pushes the corresponding push rod to move when inclining towards one side opposite to the air flow direction, so that the counter weight block moves, the weight of the machine body close to one side of the air flow is increased, and the phenomenon that the air flow pushes the machine frame to incline is avoided.
Description
Technical Field
The invention relates to the technical field of photogrammetric devices, in particular to an oblique photogrammetric device for realizing topographic mapping.
Background
The oblique photogrammetry technology is a new measurement technology developed in recent years, and is a comprehensive technical means for carrying a multi-angle and multi-splicing camera on a flight carrier, carrying out data acquisition, three-dimensional modeling on ground full-factor information, and outputting products such as real photographic images, large-scale topographic maps and the like, but most of the existing devices are simple in structure and single in function, and specifically have the following problems:
1: the oblique photography measuring device is used outdoors, and the ground unevenness affects the rise and fall of the unmanned aerial vehicle, so that the oblique photography measuring device is easily damaged;
2: when the unmanned aerial vehicle is lifted, the oblique photogrammetric device fluctuates when encountering air flow, so that the finally acquired data is influenced.
Disclosure of Invention
The present invention is directed to a tilted photogrammetric apparatus for topographic mapping to solve the above-mentioned problems.
In order to achieve the purpose, the invention provides the following technical scheme: a slant photography measuring device for realizing topographic mapping comprises an unmanned aerial vehicle main body, wherein the unmanned aerial vehicle main body comprises a rack, four propellers arranged on the rack, four support legs fixed at the bottom of the rack, a camera main body, a landing protection assembly and a windproof assembly; wherein, the bottom end inside the support leg is provided with a balance oil liquid cavity;
the fall to ground protection subassembly includes:
the shell is fixed at the center of the bottom of the rack, and an accommodating cavity with an opening at the bottom is formed in the shell;
the boss is horizontally arranged in the middle position in the accommodating cavity, an annular liquid return cavity is formed between the boss and the side wall of the accommodating cavity, and an annular piston is arranged in the annular liquid return cavity in a sealing sliding manner;
the sliding plate is arranged in the accommodating cavity above the boss in a sliding mode, connecting rods are uniformly arranged between the sliding plate and the annular piston assembly, and first return springs are uniformly arranged between the sliding plate and the top wall of the accommodating cavity;
the lifting plate is arranged in the accommodating cavity below the boss in a sliding mode, a sliding rod is vertically arranged in the middle of the top of the lifting plate, the top end of the sliding rod penetrates through the boss to extend and be fixedly connected with the sliding plate, and the camera shooting main body is fixed to the bottom of the lifting plate;
the telescopic piece is limited in the balance oil liquid cavity in a sealing and sliding mode, and a connecting pipe is arranged between the top of the balance oil liquid cavity and the bottom of the accommodating cavity;
the windproof component comprises:
the positioning seat is fixed in the middle of the top of the rack, and the upper end face of the positioning seat is provided with an outer side inclined plane;
the fixed cover is fixed at the center of the top of the positioning seat, and the top of the fixed cover is hemispherical;
the rolling ball is movably limited at the top of the fixed cover, the top of the rolling ball is provided with a cross-shaped fan plate through a fixed rod, the bottom of the rolling ball is fixed with a square push block through a swing rod, and the fixed rod and the swing rod are coaxially arranged;
the four balancing weights are movably limited on the inclined planes between the four propellers and the center of the rack;
the four push rods are fixed at one end, close to the fixed cover, of the balancing weight, the push rods are parallel to the inclined plane, and the other ends of the push rods penetrate through the fixed cover and are abutted against the corresponding side faces of the square push block; and
and the second reset spring is arranged between the balancing weight and the fixed cover.
Preferably, the annular piston is provided with a position at the top of the annular liquid return cavity in the sliding stroke, so that the lifting plate drives the camera main body to completely enter the first position of the accommodating cavity or the lifting plate drives the camera main body to completely slide out of the second position of the accommodating cavity.
Preferably, when the annular piston is located the first position, the unmanned aerial vehicle main part is located the bottom surface, when the annular piston is located the second position, the unmanned aerial vehicle main part is located in the air.
Preferably, the length of the cross section of the push rod is equal to the side length of the square push block.
Preferably, the telescopic part comprises a movable plug arranged in the balanced oil cavity in a sliding manner and a support rod vertically fixed at the bottom of the movable plug.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, an annular liquid return cavity is formed between a boss and the side wall of an accommodating cavity, an annular piston is arranged in the annular liquid return cavity in a sealing sliding manner, a sliding plate is arranged in the accommodating cavity above the boss in a sliding manner, connecting rods are uniformly arranged between the sliding plate and an annular piston assembly, and first return springs are uniformly arranged between the sliding plate and the top wall of the accommodating cavity; a lifting plate is arranged in the accommodating cavity below the boss in a sliding mode, a sliding rod is vertically arranged in the middle of the top of the lifting plate, the top end of the sliding rod penetrates through the boss to extend and be fixedly connected with the sliding plate, and the camera shooting main body is fixed to the bottom of the lifting plate; the balance oil liquid cavity is provided with a telescopic piece, the sealing sliding is limited, a connecting pipe is arranged between the top of the balance oil liquid cavity and the bottom of the containing cavity, when the unmanned aerial vehicle takes off, the main body of the unmanned aerial vehicle is placed on the ground, under the gravity pressure of the main body of the unmanned aerial vehicle, the telescopic pieces of the four support legs can move towards the balance oil liquid cavity to guide oil liquid in the balance oil liquid cavity into the annular liquid return cavity through the connecting pipe, so that the annular piston moves upwards and pushes the sliding plate to move upwards through the connecting rod to compress the reset spring, as the interior of the annular liquid return cavity is communicated with the four balance oil liquid cavities and most of the gravity of the main body of the unmanned aerial vehicle is concentrated at the central position of the main body, at the moment, the four telescopic pieces can respectively slide into the balance oil liquid cavities at different distances according to the terrain to keep the main body of the rack in a horizontal state so as to adapt to the terrain, and in the process, the sliding plate can drive the lifting plate to move upwards through the sliding rod to bring the main body of the camera into the containing cavity, the same reason is when falling to the ground, also can hold the intracavity portion with the main part income of making a video recording and protect and keep the frame main part to keep the level, and unmanned aerial vehicle rises when empty, at reset spring and make a video recording under the main part self weight effect this moment, the main part of making a video recording can shift out and hold the chamber and be used for gathering data.
(2) When the windproof component is arranged at the center of the top of the frame main body, when the windproof component is applied, when an unmanned aerial vehicle is subjected to air flow in the air, the cross fan plate capable of blowing causes the rolling ball to roll, so that the cross fan plate inclines towards the air flow direction, so that the square push block at the bottom inclines towards one side opposite to the air flow direction, and when the square push block inclines towards one side opposite to the air flow direction, the corresponding push rod is pushed to move, so that the counter weight block moves, the weight of the machine body close to one side of the air flow is increased, and the condition that the air flow pushes the frame to incline is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic structural view of a floor shield assembly according to the present invention;
FIG. 4 is a schematic view of the windproof component of the present invention.
In the figure: 1. an unmanned aerial vehicle main body; 11. a frame; 12. a propeller; 13. a support leg; 14. a balanced oil liquid cavity; 2. a camera body; 3. a landing protection component; 31. a housing; 32. an accommodating chamber; 33. a boss; 34. an annular liquid return cavity; 35. an annular piston; 36. a sliding plate; 37. a connecting rod; 38. a first return spring; 39. a lifting plate; 310. a slide bar; 311. a telescoping member; 312. a connecting pipe; 4. a wind-resistant assembly; 41. positioning seats; 42. a bevel; 43. a fixed cover; 44. rolling a ball; 45. fixing the rod; 46. a cross-shaped fan plate; 47. a swing rod; 48. a square push block; 49. a balancing weight; 410. a push rod; 411. and a second return spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an embodiment of the present invention is shown: a slant photography measuring device for realizing topographic mapping comprises an unmanned aerial vehicle main body 1, wherein the unmanned aerial vehicle main body 1 comprises a rack 11, four propellers 12 arranged on the rack 11, four support legs 13 fixed at the bottom of the rack 11, a camera main body 2, a landing protection component 3 and a windproof component 4; wherein, the bottom end inside the supporting leg 13 is provided with a balance oil liquid cavity 14;
the floor guard assembly 3 includes: a housing 31 fixed at a central position of the bottom of the frame 11, the housing 31 having an accommodating chamber 32 with an open bottom therein; the boss 33 is horizontally arranged at the middle position in the accommodating cavity 32, an annular liquid return cavity 34 is formed between the boss 33 and the side wall of the accommodating cavity 32, and an annular piston 35 is arranged in the annular liquid return cavity 34 in a sealing sliding mode; the sliding plate 36 is arranged in the accommodating cavity 32 above the boss 33 in a sliding mode, connecting rods 37 are uniformly arranged between the sliding plate 36 and the annular piston 35 assembly, and first return springs 38 are uniformly arranged between the sliding plate 36 and the top wall of the accommodating cavity 32; the lifting plate 39 is arranged in the accommodating cavity 32 below the boss 33 in a sliding mode, a sliding rod 310 is vertically arranged in the middle of the top of the lifting plate 39, the top end of the sliding rod 310 penetrates through the boss 33 to extend and be fixedly connected with the sliding plate 36, and the camera shooting main body 2 is fixed to the bottom of the lifting plate 39; the telescopic piece 311 is limited in the balance oil liquid cavity 14 in a sealing and sliding mode, and a connecting pipe 312 is arranged between the top of the balance oil liquid cavity 14 and the bottom of the accommodating cavity 32;
the wind-proof assembly 4 includes: the positioning seat 41 is fixed in the middle of the top of the frame 11, and the upper end face of the positioning seat 41 is provided with an outer inclined plane 42; the fixed cover 43 is fixed at the center of the top of the positioning seat 41, and the top of the fixed cover 43 is hemispherical; the rolling ball 44 is movably limited at the top of the fixed cover 43, the top of the rolling ball 44 is provided with a cross-shaped fan plate 46 through a fixed rod 45, the bottom of the rolling ball 44 is fixed with a square push block 48 through a swing rod 47, and the fixed rod 45 and the swing rod 47 are coaxially arranged; four balancing weights 49 movably limited on the inclined plane 42 between the four propellers 12 and the center of the frame 11; the four push rods 410 are fixed at one end, close to the fixed cover 43, of the balancing weight 49, the push rods 410 are parallel to the inclined plane 42, and the other ends of the push rods 410 penetrate through the fixed cover 43 and abut against the corresponding side faces of the square push blocks 48; and a second return spring 411 disposed between the weight 49 and the fixed cover 43.
Preferably, the annular piston 35 has a position at the top of the annular liquid-returning cavity 34 in the sliding stroke, so that the lifting plate 39 drives the camera body 2 to completely enter the first position of the accommodating cavity 32 or has a position at the bottom of the annular liquid-returning cavity 34, so that the lifting plate 39 drives the camera body 2 to completely slide out of the second position of the accommodating cavity 32.
Preferably, when annular piston 35 is located the first position, unmanned aerial vehicle main part 1 is located the bottom surface, and when annular piston 35 is located the second position, unmanned aerial vehicle main part 1 is in the air.
Preferably, the length of the cross section of the push rod 410 is equal to the side length of the square push block 48.
Preferably, the telescopic member 311 comprises a movable plug slidably disposed inside the balance oil chamber 14 and a support rod vertically fixed at the bottom of the movable plug.
The working principle is as follows: during takeoff, the main body 1 of the unmanned aerial vehicle is placed on the ground, under the gravity pressure of the main body 1 of the unmanned aerial vehicle, the telescopic parts 311 of the four support legs 13 move towards the balance oil liquid cavity 14 to guide oil liquid in the balance oil liquid cavity 14 into the annular liquid return cavity 33 through the connecting pipe 312, so that the annular piston 35 moves upwards and pushes the sliding plate 36 to move upwards through the connecting rod 37 to compress the return spring 38, as the annular liquid return cavity 33 is communicated with the four balance oil liquid cavities 14 and most of gravity of the main body 1 of the unmanned aerial vehicle is concentrated at the central position of the annular liquid return cavity, at the moment, the four telescopic parts 311 slide into the balance oil liquid cavity 14 at different distances according to the terrain respectively to adapt to the terrain to keep the rack 11 in a horizontal state, and in the process, the sliding plate 36 moves upwards through the sliding rod 310 to drive the lifting plate 39 to move upwards to enable the main body 2 of the camera to be taken in the containing cavity 32, and similarly, the main body 2 of the camera can be taken in the containing cavity 32 to be protected and keep the rack 11 horizontal state, when the unmanned aerial vehicle ascends, at this moment, under the action of the reset spring 38 and the self weight of the camera main body 2, the camera main body 2 can move out of the accommodating cavity for collecting data, when the unmanned aerial vehicle flies and is influenced by air flow, the cross fan plate 16 which can blow leads to the rolling ball 44 to roll so that the cross fan plate 46 inclines towards the air flow direction, the cross fan plate 46 inclines towards the air flow direction so that the square push block 48 at the bottom inclines towards one side opposite to the air flow direction, the square push block 48 pushes the corresponding push rod 410 to move so that the counter weight 49 moves towards one side opposite to the air flow direction, the weight of the rack 11 close to one side of the air flow is increased, and the air flow is prevented from pushing the rack 11 to incline.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (5)
1. A slant photography measuring device for realizing topographic mapping comprises an unmanned aerial vehicle main body (1), wherein the unmanned aerial vehicle main body (1) comprises a rack (11), four propellers (12) arranged on the rack (11) and four support legs (13) fixed at the bottom of the rack (11), and is characterized by further comprising a camera main body (2), a landing protection assembly (3) and a windproof assembly (4); wherein, the bottom end inside the supporting leg (13) is provided with a balance oil liquid cavity (14);
the floor protection assembly (3) comprises:
the shell (31) is fixed at the central position of the bottom of the frame (11), and an accommodating cavity (32) with an opening at the bottom is formed in the shell (31);
the boss (33) is horizontally arranged at the middle position in the accommodating cavity (32), an annular liquid return cavity (34) is formed between the boss (33) and the side wall of the accommodating cavity (32), and an annular piston (35) is arranged in the annular liquid return cavity (34) in a sealing sliding mode;
the sliding plate (36) is arranged in the accommodating cavity (32) above the boss (33) in a sliding mode, connecting rods (37) are uniformly arranged between the sliding plate (36) and the annular piston (35) assembly, and first return springs (38) are uniformly arranged between the sliding plate (36) and the top wall of the accommodating cavity (32);
the lifting plate (39) is arranged in the accommodating cavity (32) below the boss (33) in a sliding mode, a sliding rod (310) is vertically arranged in the middle of the top of the lifting plate (39), the top end of the sliding rod (310) penetrates through the boss (33) to extend and be fixedly connected with the sliding plate (36), and the camera shooting main body (2) is fixed to the bottom of the lifting plate (39);
the telescopic piece (311) is limited in the balance oil liquid cavity (14) in a sealing and sliding mode, and a connecting pipe (312) is arranged between the top of the balance oil liquid cavity (14) and the bottom of the accommodating cavity (32);
the wind-proof assembly (4) comprises:
the positioning seat (41) is fixed in the middle of the top of the rack (11), and an outer side inclined plane (42) is arranged on the upper end face of the positioning seat (41);
the fixing cover (43) is fixed at the center of the top of the positioning seat (41), and the top of the fixing cover (43) is hemispherical;
the rolling ball (44) is movably limited at the top of the fixed cover (43), the top of the rolling ball (44) is provided with a cross-shaped fan plate (46) through a fixed rod (45), the bottom of the rolling ball (44) is fixedly provided with a square push block (48) through a swing rod (47), and the fixed rod (45) and the swing rod (47) are coaxially arranged;
the four balancing weights (49) are movably limited on the inclined planes (42) between the four propellers (12) and the center of the rack (11);
the four push rods (410) are fixed at one end, close to the fixed cover (43), of the balancing weight (49), the push rods (410) are parallel to the inclined plane (42), and the other end of each push rod (410) penetrates through the fixed cover (43) and is abutted against the corresponding side face of the square push block (48); and
and the second return spring (411) is arranged between the balancing weight (49) and the fixed cover (43).
2. A topographic surveying and mapping enabling oblique photogrammetric apparatus according to claim 1, characterized in that: the annular piston (35) has in the sliding stroke and is located annular liquid return chamber (34) top to make lifter plate (39) drive make a video recording main part (2) get into the first position department that holds chamber (32) completely or have position annular liquid return chamber (34) bottom, so that lifter plate (39) drive make a video recording main part (2) slide out the second position that holds chamber (32) completely.
3. A topographic surveying and mapping enabling oblique photogrammetric apparatus according to claim 2, characterized in that: when annular piston (35) are located the first position, unmanned aerial vehicle main part (1) is located the bottom surface, when annular piston (35) are located the second position, unmanned aerial vehicle main part (1) is located in the air.
4. A topographic surveying and mapping enabling oblique photogrammetric apparatus according to claim 1, characterized in that: the length of the cross section of the push rod (410) is equal to the side length of the square push block (48).
5. A topographic surveying and mapping enabling oblique photogrammetric apparatus according to claim 1, characterized in that: the telescopic piece (311) comprises a movable plug arranged in the balance oil liquid cavity (14) in a sliding mode and a supporting rod vertically fixed to the bottom of the movable plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110614958.XA CN113280791B (en) | 2021-06-02 | 2021-06-02 | Oblique photography measuring device for realizing topographic mapping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110614958.XA CN113280791B (en) | 2021-06-02 | 2021-06-02 | Oblique photography measuring device for realizing topographic mapping |
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| Publication Number | Publication Date |
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| CN113280791A true CN113280791A (en) | 2021-08-20 |
| CN113280791B CN113280791B (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110614958.XA Expired - Fee Related CN113280791B (en) | 2021-06-02 | 2021-06-02 | Oblique photography measuring device for realizing topographic mapping |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114964156A (en) * | 2022-05-19 | 2022-08-30 | 周平 | Stable three-dimensional topographic surveying and mapping device |
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| Publication number | Publication date |
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| CN113280791B (en) | 2021-12-17 |
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